Amid reports of more possible nuclear tests by Pyongyang regime, Russia has deployed surveillance aircraft to monitor North Korean territory, a top air force official said on Thursday.

"We have A-50 aircraft, which fulfil the same function as American Air-borne Warning and Control System (AWACS). Today, we can track all targets from zero to 40,000 metres," Russian Air Chief Gen Vladimir Mikhailov said.

He was responding to a question whether Russia was monitoring North Korea in the wake of October 9 nuclear test by the communist regime.

"We have other reconnaissance means as well, and that's why we know and see everything. We can see as far as we need to," Gen Mikhailov was today quoted as saying by Ria Novosti news agency.